Date: Thu, 28 Dec 2006 17:56:29 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: Randall Stewart <rrs@cisco.com> Subject: Re: A stuck system Message-ID: <200612281756.29949.jhb@freebsd.org> In-Reply-To: <458960F2.9090703@cisco.com> References: <45891FE9.4020700@cisco.com> <58281AA0-3738-490C-9EA8-7766033713A2@siliconlandmark.com> <458960F2.9090703@cisco.com>
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On Wednesday 20 December 2006 11:12, Randall Stewart wrote: > Interesting.. I have actually been having > this problem for a while... can't remember > when I last updated.. its related to pounding > the network.. at least mine seems to be... (I > am pounding the loopback).. and it appears > that everything just "freezes". > > Is your machine a Gig-a-Byte motherboard? Do you have a dual-port msk0 device? > R > > Andre Guibert de Bruet wrote: > > > > > > On Dec 20, 2006, at 8:49 AM, Randall Stewart wrote: > > > >> Ok, I was wrong on this... I recreated it.. hooked up > >> my em0 card to my laptop (right now its isolated > >> running the mpi tests and uses the loopback only). > >> > >> I do a ping > >> > >> And ta-da the system comes back to life after > >> being hung for 15 minutes. > >> > >> This time I did not see any of the usual syslog messages > >> either... of course it was only "stuck" for 15 minutes or > >> so... > >> > >> I will leave the thing running and get it stuck again and > >> validate that the msk and usb will also cause the machine > >> to come back to life.. > >> > >> Is there any way this could be a lost interupt type problem (remember > >> the scheduler is appearing to "stop" scheduling things). OR > >> is this a problem with my hardware... somehow failing to > >> deliver interupts maybe??? > > > > > > I am seeing something similar on my dual Xeon system. It appears that a > > kernel from December 13th did not exhibit this behavior whereas one > > from the 16th does. I am able to "revive" the machine by pushing traf > > on the msk0 interface. > > > > Kernel config: http://bling.properkernel.com/freebsd/BLING > > > > Andy > > > > /* Andre Guibert de Bruet * 6f43 6564 7020 656f 2e74 4220 7469 6a20 */ > > /* Code poet / Sysadmin * 636f 656b 2e79 5320 7379 6461 696d 2e6e */ > > /* GSM: +1 734 846 8758 * 5520 494e 2058 6c73 7565 6874 002e 0000 */ > > /* WWW: siliconlandmark.com * C/C++, Java, Perl, PHP, SQL, XHTML, XML */ > > > > > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > > > > -- John Baldwin
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